Difference between revisions of "3-2-1 voting"

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In 3-2-1 voting, voters may rate each candidate “Good”, “Acceptable”, or “Rejected”. It has three steps:
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* Find 3 Semifinalists: the candidates with the most “good” ratings. (If this is a partisan election, no two semifinalists may come from the same party).
 
* Find 2 Finalists: the semifinalists with the fewest rejections.
 
* Find 1 winner: the finalist who is rated above the other on more ballots.
 
 
 
== Examples ==
 
 
 
Imagine an election for a high school mascot, in which the options are “Bulldogs”, “Lions”, “Tigers”, or “Knights”, with the following votes:
 
 
 
{| class="wikitable"
 
! Faction size
 
! "Good" candidates
 
! "Acceptable" candidates
 
! "Bad" candidates
 
|-
 
| style="text-align: right;" | 39
 
| Bulldogs, Knights
 
|
 
| Lions, Tigers
 
|-
 
| style="text-align: right;" | 1
 
| Bulldogs
 
|
 
| Knights, Lions, Tigers
 
|-
 
| style="text-align: right;" | 35
 
| Tigers
 
| Lions
 
| Bulldogs, Knights
 
|-
 
| style="text-align: right;" | 20
 
| Lions
 
| Tigers
 
| Bulldogs, Knights
 
|-
 
| style="text-align: right;" | 5
 
| Knights, Lions
 
| Bulldogs
 
| Tigers
 
|}
 
 
 
The votes above lead to the following outcome:
 
 
 
{| class="wikitable"
 
! Candidate
 
! "Good" ratings
 
! "Acceptable" ratings
 
! "Bad" ratings
 
! 2-way score
 
|-
 
| Lions
 
| bgcolor="#fcc"|25
 
| bgcolor="#ebb"|35
 
|bgcolor="#fcc"| 40
 
| bgcolor="#fcc"|
 
|-
 
| Tigers
 
| bgcolor="#cfc"| 35
 
| bgcolor="#beb"|20
 
| bgcolor="#cfc"|45
 
| bgcolor="#cfc"| 55
 
|-
 
| Knights
 
| bgcolor="#cfc"|  44
 
| bgcolor="#beb"|0
 
| bgcolor="#fcc"|56
 
| bgcolor="#fcc"|
 
|-
 
| Bulldogs
 
| bgcolor="#cfc"|  40
 
| bgcolor="#beb"| 5
 
| bgcolor="#cfc"|55
 
| bgcolor="#fcc"|45
 
|}
 
 
 
The semifinalists are Tigers, Knights, and Bulldogs. The finalists are Tigers and Bulldogs. The winner is Tigers.
 

Latest revision as of 19:01, 16 May 2020

This page has been migrated to "3-2-1 voting" on electowiki.org, but the history prior to 2018-10-01 has been archived here on wiki.electorama.com. Visit electowiki.org/wiki/3-2-1 voting for the latest version.